I have an issue with The Last Blade 2 on steam in which randomly my frame rate would seem to be at half refresh. Like the game goes into 30 fps. The shadows also become solid with only one shadow under one character at a time. This can happen when playing Story mode with or without multiplayer and in any stage with any character. Fullscreen or Windowed and in any Windows compatibility mode.

The only way to temporarily solve this problem is to pause the game and go into the player's move list menu then exit out. The problem then later resurfaces.

I have the latest Nvidia driver updates. (Dec 7) I have a Gsync monitor but I have tried the game with Gysnc enabled and disabled but no resolve.

The game does not slow down in the sense that things go in "slow motion" or slow to a crawl
It's like the game runs at half the refresh rate that it's supposed to. Almost like there's now a 30 fps cap put in temporarily. (Until I go into the move lists menu then back out)

The 'pacing" is the same but there's obviously the increased input delay that you would associate with a game going from 60fps down to 30fps

My desktop refresh rate is 144hz

There's also two other Steam forum users who posted similar issues to mine in the Last Blade 2 steam forums. One of them however runs a laptop and Alienware steam box. I'm willing to bet his laptop at least runs at 60hz

I've done the following steps and double checked my command line spelling. The game confirms the same build you post as well as having the words (beta) next to the title in the Library list. Just to ensure no issues I re-verified the integrity of game files. The issue seems to persist. What's weird is the problem being resolved by checking your character's move list